Awning



Oct. 23, 192s. 1,688,776

. E. F. BARBER AWN I NG Filed Oct. 23, 1925 INVENTOR,

. 4 /fk'f ATTORNEY.v

Patented oa. 23, 192s.

itesm i PATENT OFFICE.

EARL F. BARBER', OF KANSAS CITY, KANSAS.

AW'NING.

Application led October 23, 1925. Serial No. 64,348.

My invention relates to improvements in awnings. It4 relates particularly to the type of awnings in which an awning sheet is attached to and adapted to be wound upon a rotary drum, and in which the drum is rotated, to extend and retract the sheet, by means which includes a manually turned rotary shaft.

One of the objects of my invention is to provide novel means for automatically stopping the unwinding movement of the drum when the awning sheet has been extended to the 'desired extent. A further object of my invention is to provide novel adjustable means by which the extension of the awning sheetl may be automatically stopped at different points.

A further object of my invention is to provide a novel mechanism of the kind described, which is simple, cheap, not liable to get out of order, which is durable, and which is readily applicable to awnings now being manufactured and in use.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawing, which illustrates the preferred form of my invention,

Fig. 1 is a side elevation of an ordinary type of awning which is provided with my improvement.

2 is an enlarged top view of a portion of the same, partly broken away.

Fig. 3 is a vertical section on the line 3 3 of Fig. 2.

Fig. 4 is a cross section on the line 4-4 of Fig. 3.

Fig. 5 is a section on the line 5 5 of Fig. 3.

Similar reference characters designate similar parts in the different views.

The awning illustrated is of an ordinary type having the usual awning sheet 1 attached to and adapted to be wound on a horizontal drum 2 rotatably supported at its ends, one end having a spindle 3, which extends into and is rotatable in a support comprising a housing 4, in which is a gear wheel 5, which is keyed on the drum spindle 3 and which meshes with a worm 6, which is in the housing 4 and which is mounted on and rotatable with a vertical shaft 7 to the lower end of which is fastened by a transverse pin 8, a hook 9. The hook 9 is adapted to be releasably engaged by an eye 10 in the upper end of an operating shaft 11 having` a crank 12 by which it may be rotated to turn the shaft 7 so as to extend or retract the awning sheet 1 in a known manner.

rlhe sheet 1 is attached at its outer por-v tion to the usual pole 13 which .is carried by and at the outer ends of two spreader bars, only one of lwhich is shown, and which is designa-ted by 14. The inner end of the bar 14 is pivoted to a T 15 by a horizontal pin 16, the T being slidable on a vertical bar 17, the ends of which are fastened to the adjacent side 18 of the building, and to which is also fastened the housing 4. Slidable on the bar 14 is a sleeve 19 to which is pivoted one end of a rod 20, the other end of which is pivote'd to a bracket 21, which is fastened to the building 18 above the bar 17.

To prevent the shaft 7 being` unwittingly turned so as to extend the sheet 1 too much and thereby possibly injure or break its connection with the drum 2, my invention provides threading the shaft 7 from its lower end to the housing 4, thereby making of it a screw on which l fit for travel thereon a nut 22, the rear edge of which engages and is held from turning by a suitable guide, which comprise two vertical bars 23 disposed side by side and fastened together near their lower ends by a transverse bolt 24, the upper ends of said bars being outwardly laterally turned and fastened respectively by two bolts 25, which are fitted respectively in vertical threaded holes in the under side of the hous ing 4, Fig. 4. The forward edges of t-he bars 23 are parallel with and adjacent to the threaded portion of the screw shaft 7, and the nut 22 has sliding engagement with said forward edges of the bars 23.

In the operation of my invention, assuming that the awning is fully retracted, the nut 22 will be in the dotted position shown in Fig. 3. lf now the operating shaft 11 has its eye 10 engaged with the hook 9, and the crank 12 is turned to extend the awning sheet 1, the nut 22 will travel upwardly on the screw shaft- 7 until the nut strikes the housing 4, at which time it will lock the screw shaft from turning. This will be at the time the awning sheet 1 has been extended to the desired posit-ion. This position may be varied by adjusting the nut 22 on the screw shaft 7, before the guide bars 23 are attached to the housing 4. Or, after the guide bars 23 are attached to the housing, the screw 7 may be turned so as to bring the nut 22 out of engagement with the guide bars 23, after which the screw may be turned, and with it the nut, to bring t e awning to a desired position for one end of its travel, after which the nut may be turned to a position in which it will have its fiatside ready to engage the guide bars, which it will do upon turning the Screw in the proper direction. A variation of the amount of awning sheet to be unwound may be thus effected, Without disasselnbling any of' the parts of the device.

To so adjust the extent of movement of the awning sheet, the operating shaft 1l is used to extend the sheet l to the desired position, before the nut and bars 23 are mounted in their respective positions. The nut 22 is then screwed on the screw shaft 7 until the nut strikes the housing 4, the hook 9 being first removed from the screw shaft 7, to permit of the screwing of the nut 22 on said screw shaft. The bars 23 are then fixed in their operative positions. The nut 22 will thereafter stop the turning of the screw shaft- 7 when the awning sheet 1 has been extended tothe adjusted position.

I do not limit my invention to the structure shown and described, as many modifications of my invention, within the scope of the lappended claim, without departing from the spirit of Iny invention.

lVhat I claim is :-'-v

In an awning, the combination with a drum on which an awning sheet is adapted to be wound, a support therefor on which the drum is rotatable, a screw, rotatable on said support and means actuated by the screw forrotating the drum, `of a guiding member parallel with said screw, the latter having its threaded part projecting beyond the guiding member, and a nut fitted for travel on said screw and having sliding engagement with said guiding member and arranged to travel on said screw out of engagement with said guiding member, the latter having means for holding the nut from turning. v

In testimony whereof I have signed my name to this specification.

EARL F. BARBER. 

